Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*

 * Copyright (c) International Business Machines Corp., 2006

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See

 * the GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

 *

 * Author: Artem Bityutskiy (Битюцкий Артём)

 */

#ifndef __UBI_DEBUG_H__

#define __UBI_DEBUG_H__

#ifdef CONFIG_MTD_UBI_DEBUG

#include <linux/random.h>

#define ubi_assert(expr)  BUG_ON(!(expr))

#define dbg_err(fmt, ...) ubi_err(fmt, ##__VA_ARGS__)

#else

#define ubi_assert(expr)  ({})

#define dbg_err(fmt, ...) ({})

#endif

#ifdef CONFIG_MTD_UBI_DEBUG_DISABLE_BGT

#define DBG_DISABLE_BGT 1

#else

#define DBG_DISABLE_BGT 0

#endif

#ifdef CONFIG_MTD_UBI_DEBUG_MSG

/* Generic debugging message */

#define dbg_msg(fmt, ...) \

        printk(KERN_DEBUG "UBI DBG: %s: " fmt "\n", __FUNCTION__, ##__VA_ARGS__)

#define ubi_dbg_dump_stack() dump_stack()

struct ubi_ec_hdr;

struct ubi_vid_hdr;

struct ubi_volume;

struct ubi_vtbl_record;

struct ubi_scan_volume;

struct ubi_scan_leb;

struct ubi_mkvol_req;

void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr);

void ubi_dbg_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr);

void ubi_dbg_dump_vol_info(const struct ubi_volume *vol);

void ubi_dbg_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx);

void ubi_dbg_dump_sv(const struct ubi_scan_volume *sv);

void ubi_dbg_dump_seb(const struct ubi_scan_leb *seb, int type);

void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req);

#else

#define dbg_msg(fmt, ...)    ({})

#define ubi_dbg_dump_stack() ({})

#define ubi_dbg_dump_ec_hdr(ec_hdr)      ({})

#define ubi_dbg_dump_vid_hdr(vid_hdr)    ({})

#define ubi_dbg_dump_vol_info(vol)       ({})

#define ubi_dbg_dump_vtbl_record(r, idx) ({})

#define ubi_dbg_dump_sv(sv)              ({})

#define ubi_dbg_dump_seb(seb, type)      ({})

#define ubi_dbg_dump_mkvol_req(req)      ({})

#endif /* CONFIG_MTD_UBI_DEBUG_MSG */

#ifdef CONFIG_MTD_UBI_DEBUG_MSG_EBA

/* Messages from the eraseblock association unit */

#define dbg_eba(fmt, ...) \

        printk(KERN_DEBUG "UBI DBG eba: %s: " fmt "\n", __FUNCTION__, \

               ##__VA_ARGS__)

#else

#define dbg_eba(fmt, ...) ({})

#endif

#ifdef CONFIG_MTD_UBI_DEBUG_MSG_WL

/* Messages from the wear-leveling unit */

#define dbg_wl(fmt, ...) \

        printk(KERN_DEBUG "UBI DBG wl: %s: " fmt "\n", __FUNCTION__, \

               ##__VA_ARGS__)

#else

#define dbg_wl(fmt, ...) ({})

#endif

#ifdef CONFIG_MTD_UBI_DEBUG_MSG_IO

/* Messages from the input/output unit */

#define dbg_io(fmt, ...) \

        printk(KERN_DEBUG "UBI DBG io: %s: " fmt "\n", __FUNCTION__, \

               ##__VA_ARGS__)

#else

#define dbg_io(fmt, ...) ({})

#endif

#ifdef CONFIG_MTD_UBI_DEBUG_MSG_BLD

/* Initialization and build messages */

#define dbg_bld(fmt, ...) \

        printk(KERN_DEBUG "UBI DBG bld: %s: " fmt "\n", __FUNCTION__, \

               ##__VA_ARGS__)

#else

#define dbg_bld(fmt, ...) ({})

#endif

#ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_BITFLIPS

/**

 * ubi_dbg_is_bitflip - if it is time to emulate a bit-flip.

 *

 * Returns non-zero if a bit-flip should be emulated, otherwise returns zero.

 */

static inline int ubi_dbg_is_bitflip(void)

{

        return !(random32() % 200);

}

#else

#define ubi_dbg_is_bitflip() 0

#endif

#ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_WRITE_FAILURES

/**

 * ubi_dbg_is_write_failure - if it is time to emulate a write failure.

 *

 * Returns non-zero if a write failure should be emulated, otherwise returns

 * zero.

 */

static inline int ubi_dbg_is_write_failure(void)

{

        return !(random32() % 500);

}

#else

#define ubi_dbg_is_write_failure() 0

#endif

#ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_ERASE_FAILURES

/**

 * ubi_dbg_is_erase_failure - if its time to emulate an erase failure.

 *

 * Returns non-zero if an erase failure should be emulated, otherwise returns

 * zero.

 */

static inline int ubi_dbg_is_erase_failure(void)

{

                return !(random32() % 400);

}

#else

#define ubi_dbg_is_erase_failure() 0

#endif

#endif /* !__UBI_DEBUG_H__ */